Long before Guy Fieri was a famous chef and restaurateur — and a ubiquitous, bleach-blonde presence on television — he was just a 10-year-old kid taking one of his first trips to "Flavortown" with a hot pretzel covered in salt and mustard.

In fact, the star of Food Network shows like "Diners, Drive-Ins and Dives" — who has also opened dozens of his own restaurants around the world — first found success in the food business selling pretzels out of a cart he built with his dad when he was 10 years old in his hometown of Ferndale, California.